From @masak

<eric256> rakudo​: my @​a = <1 2 3 4 5 6>; my @​b = (10..16); for @​a Z @​b
<-> $a,$b { $a++ }; say @​a;
<p6eval> rakudo 34586​: OUTPUT«234567␤»
<eric256> rakudo​: my @​a = <1 2 3 4 5 6>; my @​b = (10..16); for @​a Z @​b
<-> $a,$b { $a = $a +1 }; say @​a;
<p6eval> rakudo 34586​: OUTPUT«Cannot assign to readonly variable. [...]
<eric256> rakudo​: my @​a = <1 2 3 4 5 6>; my @​b = (10..16); for @​a Z @​b
-> $a,$b { $a++ }; say @​a;
<p6eval> rakudo 34586​: OUTPUT«234567␤»
<eric256> yea ++ is working regardless of anything else ;) how odd
* masak submits rakudobug

From @bacek

On Mon Dec 29 10​:17​:11 2008, masak wrote​:

<eric256> rakudo​: my @​a = <1 2 3 4 5 6>; my @​b = (10..16); for @​a Z @​b
<-> $a,$b { $a++ }; say @​a;
<p6eval> rakudo 34586​: OUTPUT«234567␤»
<eric256> rakudo​: my @​a = <1 2 3 4 5 6>; my @​b = (10..16); for @​a Z @​b
<-> $a,$b { $a = $a +1 }; say @​a;
<p6eval> rakudo 34586​: OUTPUT«Cannot assign to readonly variable. [...]
<eric256> rakudo​: my @​a = <1 2 3 4 5 6>; my @​b = (10..16); for @​a Z @​b
-> $a,$b { $a++ }; say @​a;
<p6eval> rakudo 34586​: OUTPUT«234567␤»
<eric256> yea ++ is working regardless of anything else ;) how odd
* masak submits rakudobug

Fix is here
http://github.com/bacek/rakudo/commit/0b681ae7d7ee98fe49e448424538ab89e9029a5f

"Ensure that (prefix|postfix)^(++|--) can not change readonly variables"

--
Bacek

The RT System itself - Status changed from 'new' to 'open'

From @jnthn

On Mon Dec 29 10​:17​:11 2008, masak wrote​:

<eric256> rakudo​: my @​a = <1 2 3 4 5 6>; my @​b = (10..16); for @​a Z @​b
<-> $a,$b { $a++ }; say @​a;
<p6eval> rakudo 34586​: OUTPUT«234567␤»
<eric256> rakudo​: my @​a = <1 2 3 4 5 6>; my @​b = (10..16); for @​a Z @​b
<-> $a,$b { $a = $a +1 }; say @​a;
<p6eval> rakudo 34586​: OUTPUT«Cannot assign to readonly variable. [...]
<eric256> rakudo​: my @​a = <1 2 3 4 5 6>; my @​b = (10..16); for @​a Z @​b
-> $a,$b { $a++ }; say @​a;
<p6eval> rakudo 34586​: OUTPUT«234567␤»
<eric256> yea ++ is working regardless of anything else ;) how odd
* masak submits rakudobug

++ now doesn't work regardless any more as of git 45cf376, and <-> is
now also implemented in git bb2cdb7 (didn't add any more tests, since
once the ++ problem is solved then we can't really pass both that test
and the <-> one without having both done properly, so I think coverage
is enough).

Thanks!

Jonathan

@jnthn - Status changed from 'open' to 'resolved'